Spinal CanalSpinal Cord CompressionSpinal StenosisCervical VertebraeSpinal CordSpondylosisLaminectomyLigamentum FlavumSpinal NeoplasmsSpinal Cord InjuriesArnold-Chiari MalformationDecompression, SurgicalSpinal Cord NeoplasmsSpinal Cord DiseasesLumbar VertebraeThoracic VertebraeMyelographyMagnetic Resonance ImagingPolyradiculopathyCauda EquinaSpinal DiseasesEpidural NeoplasmsEpidural SpaceSpinal FusionParaplegiaSpinal Nerve RootsSemicircular CanalsHematopoiesis, ExtramedullaryQuadriplegiaLumbosacral RegionSpinal FracturesHematoma, Epidural, SpinalIntervertebral Disc DisplacementRadiculopathyScheuermann DiseaseNerve Compression SyndromesTomography, X-Ray ComputedSpineEar CanalLongitudinal LigamentsSpinal InjuriesTreatment OutcomeSpinal OsteophytosisParaparesisHyperostosisInjections, SpinalDura MaterEpidural AbscessNeurosurgical ProceduresRheumatic NoduleRecovery of FunctionOsteochondromaTuberculosis, SpinalRoot Canal PreparationBalloon EmbolectomySpinal NervesCarotid StenosisOdontoid ProcessArachnoid CystsAortic Valve StenosisCervical AtlasBone NeoplasmsAnesthesia, SpinalSpinal Cord IschemiaArachnoidExostoses, Multiple HereditaryIntervertebral DiscMotor NeuronsDiphosphonatesRetrospective StudiesSacrumOssification of Posterior Longitudinal LigamentBrown-Sequard SyndromeAxisHemangiomaFractures, CompressionData CompressionInternal FixatorsTime FactorsSpondylolisthesisFractures, SpontaneousNeck InjuriesCoronary StenosisRoot Canal IrrigantsKyphosisLow Back PainDental Pulp CavityMyelitisTracheal StenosisAtlanto-Axial JointOssification, HeterotopicAnterior Horn CellsSyringomyeliaRoot Canal Filling MaterialsFatal OutcomeRats, Sprague-DawleyParalysisPhrenic NerveDisease Models, AnimalUmbilical Cord